Devices and methods for an electromagnetic coil

Abstract

Example implementations herein relate to electromagnetic coils. One example device includes a plurality of coil windings. Each coil winding may extend around a shared core region inside the plurality of coil windings between a respective first end and a respective second end. The respective first end is electrically connected to a respective first-end electrical contact. The respective second end is electrically connected to a respective second-end electrical contact. The device also includes a plurality of mountable components. Each mountable component electrically couples a respective first coil winding to a respective second coil winding via the respective first-end electrical contact of the respective first coil winding and the respective second-end electrical contact of the second coil winding.

What is claimed is: 
     
       1. A device comprising:
 a plurality of coil windings associated with a shared core region inside the plurality of coil windings, wherein each coil winding extends around the shared core region between a respective first end and a respective second end, wherein the respective first end is electrically connected to a respective first-end electrical contact and the respective second end is electrically connected to a respective second-end electrical contact such that each coil winding defines a coil-shaped electrically conductive path that extends around the shared core region between two electrical contacts; and 
 a plurality of mountable components, wherein each mountable component electrically couples a respective first coil winding to a respective second coil winding via the respective first-end electrical contact of the respective first coil winding and the respective second-end electrical contact of the respective second coil winding. 
 
     
     
       2. The device of  claim 1 , wherein the plurality of mountable components comprise a plurality of resistors. 
     
     
       3. The device of  claim 1 , wherein the plurality of coil windings are in a toroidal arrangement about the shared core region. 
     
     
       4. The device of  claim 1 , further comprising:
 circuitry that causes one or more electrical currents to flow through the plurality of coil windings, wherein the one or more electrical currents cause the plurality of coil windings to generate a magnetic field associated with the shared core region. 
 
     
     
       5. The device of  claim 1 , wherein two or more of the plurality of coil windings are connected in a series circuit configuration via one or more of the plurality of mountable components. 
     
     
       6. The device of  claim 1 , wherein two or more of the plurality of coil windings are connected in a parallel circuit configuration via one or more of the plurality of mountable components. 
     
     
       7. The device of  claim 1 , wherein the plurality of coil windings comprise:
 a first plurality of conductive structures in a first coplanar arrangement; 
 a second plurality of conductive structures in a second coplanar arrangement; and 
 a plurality of interconnects that electrically couple the first plurality of conductive structures with the second plurality of conductive structures to form the plurality of coil windings. 
 
     
     
       8. The device of  claim 7 , wherein the first plurality of conductive structures comprise:
 a first conductive structure included in a first coil winding; and 
 a second conductive structure adjacent to the first conductive structure in the first coplanar arrangement, wherein the second conductive structure is included in a second coil winding. 
 
     
     
       9. The device of  claim 7 , wherein the device further comprises a circuit board, wherein the first plurality of conductive structures are disposed in a first layer of the circuit board, wherein the second plurality of conductive structures are disposed in a second layer of the circuit board, and wherein the plurality of interconnects comprise electrical connections between the first layer and the second layer. 
     
     
       10. The device of  claim 7 , wherein the first coplanar arrangement is substantially parallel to the second coplanar arrangement. 
     
     
       11. The device of  claim 7 , further comprising:
 a platform that rotates about an axis, wherein the first plurality of conductive structures is at a given distance to the axis. 
 
     
     
       12. The device of  claim 11 , wherein the second plurality of conductive structures is at the given distance to the axis. 
     
     
       13. The device of  claim 11 , wherein the axis extends through a center of the first coplanar arrangement and a center of the second coplanar arrangement, and wherein the axis is perpendicular to the first coplanar arrangement and the second coplanar arrangement. 
     
     
       14. A device comprising:
 a plurality of toroidal coil windings associated with a shared core region inside the plurality of toroidal coil windings, wherein each toroidal coil winding extends around the shared core region between a respective first end and a respective second end, wherein the respective first end is electrically connected to a respective first-end electrical contact and the respective second end is electrically connected to a respective second-end electrical contact such that each coil winding defines a coil-shaped electrically conductive path that extends around the shared core region between two electrical contacts; and 
 a plurality of mountable components, wherein each mountable component electrically couples a respective first toroidal coil winding to a respective second toroidal coil winding via the respective first-end electrical contact of the respective first toroidal coil winding and the respective second-end electrical contact of the respective second toroidal coil winding. 
 
     
     
       15. The device of  claim 14 , wherein the plurality of toroidal coil windings comprise:
 a first plurality of conductive structures in a first coplanar arrangement; 
 a second plurality of conductive structures in a second coplanar arrangement; and 
 a plurality of interconnects that electrically couple the first plurality of conductive structures with the second plurality of conductive structures to form the plurality of toroidal coil windings. 
 
     
     
       16. The device of  claim 15 , further comprising:
 a circuit board, wherein the first plurality of conductive structures are disposed in a first layer of the circuit board, wherein the second plurality of conductive structures are disposed in a second layer of the circuit board, and wherein the plurality of interconnects extend from the first layer to the second layer. 
 
     
     
       17. The device of  claim 15 , wherein the first plurality of conductive structures and the second plurality of conductive structures are concentrically arranged about an axis of symmetry of the plurality of toroidal coil windings.